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(No Model.)

G. H. RHEUTAN. TUBULAR STEAM BOILER.

N. PUKHS, Phmmnhpgmphm, wnshmglon, D. C.

Nrran STATES PATENT OFFICE.

CARRIE H. RHEUTAN, OF HARTFORD, CONNECTICUT, ASSIGNOR TO HENRY B. BEACH & SON, OF SAME PLACE.

lTUBULAR STEAM-BOILER.

SPECIFICATION forming part of Letters Patent No. 262,247, dated August 8, 1882.

Application tiled June 6, 188:2.

To all whom it may concern f Be it known that I, GARRIE HERRING RHEU- TAN, ofthe city and county ot' Hartford, ot' the btate ot' Connecticut, have invented a new and useful Improvement in Tubular Steam-Boilers; and I do hereby declare the same to be described in the following specification and represented in the accompanying drawings, of which- 1o Figure l is a vertical and longitudinal seetion of a boiler provided with my invention. Fig.2 is a transverse section of it, taken through the'connections ot'its return and advance dues.

My invention, the nature of which is defined t5 in the claim hereinafter presented, relates to the connections of the return and advance ilues, and to the arrangement ot' such connections relatively to the openings for the clearance of deposits from the bottom ofthe interzo nal surface of the boiler-shell.

Prior to my invention it has been customary to open the two return-hues into a chest or box arranged within the boilerAshell and opening through its bottom. Such box, unless having an arched passage through it in line with the cleansing hole or holes ofthe lower part of the shell, interfered with the removal ot deposits from the bottom of the inner surface of the shell, and, besides, being made with flat sides,

3o it had to be braced to prevent it from collapsing under the pressure to which it might be subjected while the boiler was generating steam.

W'ith my improvement I wholly dispense with such box, and have to each return-flue tube closed at its front end, a branch tube to lead from it to and through the boiler-shell, the two branch tubes being arranged on opposite sides of the range ot' the lower cleaning- 4o holes of the shell, in order that the cleaning (No model.)

implement, while in use, maybe readily passed between such branch tubes. It will thus be seen that by such an improvement I not only dispense with the box andits braces, butbave to the shelland return-lines cylindrical tubnlar connections capable of resisting the pressnre ofthe boiler' without requiring` to be braced therefor.

In the drawings, A denotes the boiler-shell;

B, the hre-place, C, its grate, and D the ash- 5o chamber.

lhe stack of tine-tubes is shown at E, the smoke-chaxnberat F, and the two return-flues at GG. The branch tubes connectingsuch returnlines with the advance line, H, beneath the shell, are shown at I I, the cleansing-openings ofthe bottom ofthe shell being represented at K L as ranging with each other in a line midway between thc said two branch tubes. The returnues are closed at their front ends. 6o

In the operation of this boiler the smoke and gases proceeding from the tire-place pass through the tube stack into the smoke-chainber, and thence backward through the two return-fines, and thence through the two o5 branch tubes into and through the advance tlue, from which they escape into the chimney.

I claim as my invention as follows, viz:

The boiler having the stack of flue-tubes and the two return-hues arranged with an advance 7o tine, and connected therewith by the separate branch tubes, as described, and also having the bottom cleansing-holes arrangedin line or range between such branch tubes, all being substantially as explained.

GARRl E HERRING RHEUTAN.

\Vitnesses:

R. H, EDDY, E. B. PRATT. 

